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java.lang.Objectorg.apache.naming.resources.ResourceCache
public class ResourceCache
Implements a special purpose cache.
Field Summary | |
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protected long |
accessCount
Number of accesses to the cache. |
protected CacheEntry[] |
cache
Cache. |
protected int |
cacheMaxSize
Max size of resources which will have their content cached. |
protected int |
cacheSize
Current cache size in KB. |
protected long |
desiredEntryAccessRatio
Entry hit ratio at which an entry will never be removed from the cache. |
protected long |
hitsCount
Number of cache hits. |
protected int |
maxAllocateIterations
Max amount of removals during a make space. |
protected java.util.HashMap |
notFoundCache
Not found cache. |
protected java.util.Random |
random
Random generator used to determine elements to free. |
protected int |
spareNotFoundEntries
Spare amount of not found entries. |
Constructor Summary | |
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ResourceCache()
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Method Summary | |
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boolean |
allocate(int space)
|
long |
getAccessCount()
Return the access count. |
int |
getCacheMaxSize()
Return the maximum size of the cache in KB. |
int |
getCacheSize()
Return the current cache size in KB. |
long |
getDesiredEntryAccessRatio()
Return desired entry access ratio. |
long |
getHitsCount()
Return the number of cache hits. |
int |
getMaxAllocateIterations()
Return the maximum amount of iterations during a space allocation. |
int |
getSpareNotFoundEntries()
Return the amount of spare not found entries. |
void |
load(CacheEntry entry)
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CacheEntry |
lookup(java.lang.String name)
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void |
setCacheMaxSize(int cacheMaxSize)
Set the maximum size of the cache in KB. |
void |
setDesiredEntryAccessRatio(long desiredEntryAccessRatio)
Set the desired entry access ratio. |
void |
setMaxAllocateIterations(int maxAllocateIterations)
Set the maximum amount of iterations during a space allocation. |
void |
setSpareNotFoundEntries(int spareNotFoundEntries)
Set the amount of spare not found entries. |
boolean |
unload(java.lang.String name)
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected java.util.Random random
protected CacheEntry[] cache
protected java.util.HashMap notFoundCache
protected int cacheMaxSize
protected int maxAllocateIterations
protected long desiredEntryAccessRatio
protected int spareNotFoundEntries
protected int cacheSize
protected long accessCount
protected long hitsCount
Constructor Detail |
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public ResourceCache()
Method Detail |
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public long getAccessCount()
public int getCacheMaxSize()
public void setCacheMaxSize(int cacheMaxSize)
public int getCacheSize()
public long getDesiredEntryAccessRatio()
public void setDesiredEntryAccessRatio(long desiredEntryAccessRatio)
public long getHitsCount()
public int getMaxAllocateIterations()
public void setMaxAllocateIterations(int maxAllocateIterations)
public int getSpareNotFoundEntries()
public void setSpareNotFoundEntries(int spareNotFoundEntries)
public boolean allocate(int space)
public CacheEntry lookup(java.lang.String name)
public void load(CacheEntry entry)
public boolean unload(java.lang.String name)
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